Code of Federal Regulations Title 26. Internal Revenue § 26.301.9000–3 Testimony authorizations

(a) Prohibition on disclosure of IRS records or information without testimony authorization. Except as provided in paragraph (b) of this section, when a request or demand for IRS records or information is made, no IRS officer, employee or contractor shall testify or disclose IRS records or information to any court, administrative agency or other authority, or to the Congress, or to a committee or subcommittee of the Congress without a testimony authorization. However, an IRS officer, employee or contractor may appear in person to advise that he or she is awaiting instructions from an authorizing official with respect to the request or demand.

(b) Exceptions. No testimony authorization is required in the following circumstances—

(c) Disclosures of IRS records or information with or without testimony authorization must be permitted under other applicable law. Any disclosure of IRS records or information that is otherwise permissible under this section must not be prohibited under applicable law. For example, in a case in which returns and return information may be disclosed, the disclosure must be authorized under section 6103, even if any required testimony authorization is obtained. If tax convention information (as defined under section 6105) may be disclosed, in deciding whether the disclosure is authorized, the authorizing official must coordinate the disclosure with the U.S. Competent Authority.